//c
#include <unistd.h>

//stream
#include <iostream>
#include <sstream>
#include <fstream>

//containers
#include <vector>
#include <queue>
#include <stack>
#include <list>
#include <array>
#include <bitset>
#include <unordered_map>
#include <unordered_set>
#include <map>
#include <set>
#include <string>

//others
#include <algorithm>
#include <numeric>
#include <bitset>
#include <random>

using namespace std;
